128 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



2. Calochortus nuttallii Torr. & Gray, U. S. Rep. Expl. Miss. Pacif. 2: 124. 1855. 

 Type locality: "Summit of Noble's Pass, Sierra Nevada." 



Range: Montana to New Mexico, west to California. 



New Mexico: Mangas Springs; Silver City; Tunitcha Mountains. Transition and 

 Canadian zones. 



A taller plant than the preceding and with less handsome but more numerous 

 lilac flowers. 



3. Calochortus gunnisonii S. Wats, in King, Geol. Expl. 40th Par. 5: 346. 1871. 

 Calochortus gunnisonii perpulcher Cockerell, Bot. Gaz. 29: 281. 1900. 



Type locality: Rocky Mountains of Colorado. 



Range: Montana and Wyoming to New Mexico and Arizona. 



New Mexico: Chama; Santa Fe and Las Vegas mountains; Chusca Mountains; 

 Ramah; Mogollon Mountains. Meadows in the mountains, in the Transition and 

 Canadian zones. 



Similar to the last in general appearance but with different anthers and glands. 

 The plants from the Santa Fe and Las Vegas mountains have larger and yellower 

 flowers than those from other parts of New Mexico. To this form Prof. T. D. A. 

 Cockerell gave the subspecific name perpulcher. His type was collected at Harveys 

 Ranch. 



19. MELANTHACEAE. Bunch-flower Family. 



Perennial caulescent or scapose herbs, with elongated or bulblike rootstocks; leaves 

 alternate, often all basal; flowers polygamous or dioecious, regular, in terminal spikes, 

 racemes, or panicles, or solitary; perianth usually inconspicuous; sepals and petals 

 distinct or nearly so; filaments often adnate to the base of the sepals and petals; ovary 

 superior or slightly inferior; styles distinct. 



KEY TO THE GENERA. 



Stems tall, 1 meter high or more, from rootstocks; leaves 



large, oval 1. Veratrtjm (p. 128). 



Stems low, less than 50 cm. high, from elongated bulbs; 

 leaves linear. 

 Perianth segments without glands, narrowly linear, 



2 to 3 mm. long, greenish 2. Schoenocaulon (p. 129). 



Perianth segments gland-bearing, not linear, 5 mm. 

 long or more, white. 

 Ovary partly inferior; glands obcordate; flow- 

 ers 1 cm. long or more, not crowded 3. Anticlea (p. 129). 



Ovary superior; glands obovate or semiorbicu- 

 lar; flowers less than 1 cm. long, 

 crowded 4. Toxicoscoroion (p. 130). 



1. VERATRTJM L. Skunk cabbage. 



Tall coarse perennial herb, 1.5 meters high or less, from thick rootstocks; leaves 

 broad, sessile, strongly veined; flowers rather large, in a broad terminal panicle; 

 perianth of 6 similar distinct elliptic-oblong segments; capsules 3-beaked, the per- 

 sistent styles divergent. 



1. Veratrum speciosuxn Rydb. Bull. Torrey Club 27: 531. 1900. 



Type locality: Bridger Mountains, Montana. 



Range: Montana and Washington to California and New Mexico. 



New Mexico: Tunitcha Mountains; Winsor Creek; Pecos Baldy; Willow Creek; 

 White Mountain Peak. Wet meadows in the mountains, Transition to Hudsonian 

 Zone. 



